Analgesic apparatus

Details Analgesic apparatus Analgesic apparatus

1975-03-25

1977-04-05

Cline, William R.

Fluid handling

Self-proportioning or correlating systems

Mixture condition maintaining or sensing

137605, G05D 1103

Patent

active

040156176

ABSTRACT:
A gas flow control system including a control for varying the flow rate of only one of two gaseous components forming an analgesic mixture to selectively vary the relative proportions thereof up to a pre-established maximum concentration of the one component and a control to vary the total flow rate of these components without varying the relative proportions thereof. Flow meters are provided to measure the relative flow rates and thereby determine the concentration of the gaseous components.

REFERENCES:
patent: 2643944 (1953-06-01), Malir, Jr.
patent: 3302053 (1962-05-01), Ross et al.
patent: 3534753 (1970-10-01), Ollivier
patent: 3582662 (1971-06-01), Soika
patent: 3677296 (1972-07-01), Berger
patent: 3739799 (1973-06-01), Bickford
patent: 3809109 (1974-05-01), Breiling

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